Flux creep in YBa2Cu3O7 films

N. Kobayashi; Y. Minagawa; K. Watanabe; S. Awaji; H. Yamane; H. Kurosawa; T. Hirai

doi:10.1016/0921-4534(91)91301-J

Flux creep in YBa₂Cu₃O₇ films

N. Kobayashi, Y. Minagawa, K. Watanabe, S. Awaji, H. Yamane, H. Kurosawa, T. Hirai

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

Flux creep phenomenon in the diamagnetic magnetization of high-J_c YBa₂Cu₃O₇ films prepared by CVD has been measured in magnetic fields up tp 50kOe. The activation energy U₀ was estimated from the flux creep rate as a function of temperature at various magnetic fields. The U₀ value increases almost linearly with increasing temperature and after taking a broad maximum at about 60K decreases both for H⊥c-axis and H//c-axis. The U₀ value near the maximum is suppressed by increasing magnetic field, although it is almost independent of the magnetic field at low temperature. Moreover, we observed that the anisotropy in the U₀ value was very small.

Original language	English
Pages (from-to)	2353-2354
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	185-189
Issue number	PART 4
DOIs	https://doi.org/10.1016/0921-4534(91)91301-J
Publication status	Published - 1991 Dec 1

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/0921-4534(91)91301-J

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abstract = "Flux creep phenomenon in the diamagnetic magnetization of high-Jc YBa2Cu3O7 films prepared by CVD has been measured in magnetic fields up tp 50kOe. The activation energy U0 was estimated from the flux creep rate as a function of temperature at various magnetic fields. The U0 value increases almost linearly with increasing temperature and after taking a broad maximum at about 60K decreases both for H⊥c-axis and H//c-axis. The U0 value near the maximum is suppressed by increasing magnetic field, although it is almost independent of the magnetic field at low temperature. Moreover, we observed that the anisotropy in the U0 value was very small.",

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T1 - Flux creep in YBa2Cu3O7 films

AU - Kobayashi, N.

AU - Minagawa, Y.

AU - Watanabe, K.

AU - Awaji, S.

AU - Yamane, H.

AU - Kurosawa, H.

AU - Hirai, T.

PY - 1991/12/1

Y1 - 1991/12/1

N2 - Flux creep phenomenon in the diamagnetic magnetization of high-Jc YBa2Cu3O7 films prepared by CVD has been measured in magnetic fields up tp 50kOe. The activation energy U0 was estimated from the flux creep rate as a function of temperature at various magnetic fields. The U0 value increases almost linearly with increasing temperature and after taking a broad maximum at about 60K decreases both for H⊥c-axis and H//c-axis. The U0 value near the maximum is suppressed by increasing magnetic field, although it is almost independent of the magnetic field at low temperature. Moreover, we observed that the anisotropy in the U0 value was very small.

AB - Flux creep phenomenon in the diamagnetic magnetization of high-Jc YBa2Cu3O7 films prepared by CVD has been measured in magnetic fields up tp 50kOe. The activation energy U0 was estimated from the flux creep rate as a function of temperature at various magnetic fields. The U0 value increases almost linearly with increasing temperature and after taking a broad maximum at about 60K decreases both for H⊥c-axis and H//c-axis. The U0 value near the maximum is suppressed by increasing magnetic field, although it is almost independent of the magnetic field at low temperature. Moreover, we observed that the anisotropy in the U0 value was very small.

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Flux creep in YBa₂Cu₃O₇ films

Abstract

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